Answer:
Graph A
Step-by-step explanation:
For each piece of the function the first number is included (0, 4, 8) and second number excluded (4, 8, 12). Included points are solid and excluded are open dots.
It's correctly reflected in A graph only.
For this case, we have the following expression:

We simplify the expression:
If we add similar terms, taking into account that different signs are subtracted and the sign of the greater one is placed, we have that 
So, we have to:

Answer:
-3x + x + 5 = -2x + 5
Answer:
-250
Step-by-step explanation:
I don't know for sure but I hope it's correct.
Answer:
I you will draw a number less than thirteen one fourth of the time. so 25%
Step-by-step explanation:
52 divided by 13 is four.